The Characteristics of Local Reaction Intensity with Changing Combustor Pressure in the Swirl-stabilized Flame

스월화염에서 연소실 압력 변동에 의한 국소 반응강도의 특성

  • 노영구 (부산대학교 기계공학부 대학원) ;
  • 김종률 (부산대학교 기계공학부 대학원) ;
  • 김태형 (전력연구원) ;
  • 서상일 (전력연구원) ;
  • 김성철 (전력연구원) ;
  • 나종문 (서라벌대학교 자동차정비튜닝과) ;
  • 최경민 (부산대학교 화력발전에너지기술분석센터) ;
  • 김덕줄 (부산대학교 화력발전에너지기술분석센터)
  • Received : 2009.11.19
  • Accepted : 2009.12.09
  • Published : 2009.12.31


An experimental study was performed to confirm the effect of the changing combustor pressure(-30~30 kpa), combustion characteristics were investigated by measuring the local chemiluminescence intensity, the local temperature distribution and emission. In order to investigate combustion ones, the combustor pressure index($P^*$) was controlled in the range of 0.7~1.3 for each equivalence ratio in the present combustion system, where $P^*$ is defined as the ratio of absolute pressure to atmospheric one. The local mean temperature showed the uniform distributions for lower pressure index, which increased with increasing equivalence ratio. The mean $OH^*$ chemiluminescence intensity, showed high level for lower pressure index for ${\Phi}{\get}1.0$ conditions. EINOx decreased with decreasing pressure index for overall equivalence ratio conditions.